I just wanted to chime in and say I have noticed this issue as well. It is quite intrusive and definitely makes working in the editor difficult. As a level designer I need to manipulate and place many objects in a scene efficiently, which is hard to do when the editor hitches whenever I rotate the camera, or an object, or anything!
[USER=“37063”]Motus Digital[/USER] I sincerely believe the issue is related to the Shared Data Cache prompt that appears now when running 4.19. I found a user on the AnswerHub who reported this issue for 4.19, and there is no real answer as to whether or not all users NOT using a shared DDC are affected by these hitches.
Would you/anyone/everyone confirm if they are using a shared DDC for their projects?
I think this could be the culprit, however; I am not 100%